Overview
CONNAUX wastewater treatment plant in Tresques, Occitanie, France, serves about 5,573 people with advanced treatment. It has a designed capacity of 7,000 m³/day and discharges 994.21 m³/day.
The CONNAUX wastewater treatment plant is located near Tresques in the Gard department of Occitanie, southern France. It serves a population of approximately 5,573, placing it in the small-to-medium agglomeration category under French and EU regulations. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Its designed capacity is 7,000 m³/day, and current discharge volume is 994.21 m³/day, indicating significant spare capacity. The plant is operated as part of France's municipal wastewater infrastructure, overseen by regional water agencies. The treated effluent is discharged into the local watershed, which ultimately drains into the Rhône River basin and then the Mediterranean Sea. The plant's advanced treatment helps protect downstream water quality in this ecologically sensitive region, supporting aquatic life and reducing nutrient loading.
Environmental context
The plant discharges into the Gardon River basin, a tributary of the Rhône River, which flows into the Mediterranean Sea. The downstream environment includes the Camargue delta, a critical wetland for migratory birds and aquatic biodiversity. Advanced treatment reduces nutrient pollution, helping to prevent eutrophication in the coastal zone.
Frequently asked questions
The CONNAUX plant is located near Tresques in the Gard department of Occitanie, southern France, along Route Nationale.
The plant serves approximately 5,573 people, classifying it as a small-to-medium agglomeration under EU standards.
CONNAUX provides advanced treatment, exceeding the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for plants of this size.
Under the EU UWWTD, agglomerations with a population equivalent above 2,000 must have at least secondary treatment. CONNAUX's advanced treatment goes beyond this, ensuring high-quality effluent for sensitive downstream environments.
The plant has a designed capacity of 7,000 m³/day, with a current discharge volume of 994.21 m³/day, indicating substantial reserve capacity.
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